Equivalent & Substitute Parts for SS26/54 Schottky Diode

Part Overview

The SS26/54 is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 60V DC reverse voltage and 2A average rectified current in a DO-214AA (SMB) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The device operates across a junction temperature range of -65°C to 125°C and exhibits fast recovery characteristics suitable for high-frequency switching applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	60	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) Maximum @ If	700	mV @ 2A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	400	µA @ 60V
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-65 to 125	°C
Technology	Schottky	—
RoHS Status	Non-compliant	—

Substitute Part Grouping Explanation

Substitution of the SS26/54 is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Voltage - DC Reverse (Vr) Maximum: 60V
Current - Average Rectified (Io): 2A
Technology: Schottky
Mounting Type: Surface Mount
Package / Case: DO-214AA (SMB) or compatible surface mount package

Secondary Considerations:

Voltage - Forward (Vf) at rated current
Current - Reverse Leakage at rated voltage
Operating temperature range
Product status (active vs. obsolete)
RoHS compliance status

Substitute parts are grouped into two categories:

Category 1: Parametric Equivalents (Same Base Product, Different Packaging) Parts SS26-E3/52T and SS26-E3/5BT share identical electrical specifications with SS26/54 but differ in packaging format (Cut Tape & Digi-Reel versus Tape & Reel). Both are active products with RoHS3 compliance.

Category 2: Direct Manufacturer Equivalents (Different Manufacturer, Matched Specifications) Parts PMEG6020EP,115, B260-13-F, MBRS260T3G, PMEG6020ETP,115, SK26_R1_00001, and SS26T3G meet the core electrical requirements of 60V, 2A, Schottky technology, and SMB packaging. These parts are sourced from Nexperia, Diodes Incorporated, onsemi, and Panjit International.

Category 3: Partial Substitutes (Different Electrical Ratings) Part STPS1H100U operates at 100V and 1A, representing a higher voltage but lower current rating. This part is included in the original substitute list but does not meet strict equivalence criteria for direct replacement in 60V/2A applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) mV @ If	Ir @ Vr µA	Package	Temp Range °C	Product Status	RoHS Status
SS26/54	Vishay	60	2	700 @ 2A	400 @ 60V	DO-214AA	-65 to 125	Obsolete	Non-compliant
SS26-E3/52T	Vishay	60	2	700 @ 2A	400 @ 60V	DO-214AA	-65 to 125	Active	RoHS3 Compliant
SS26-E3/5BT	Vishay	60	2	700 @ 2A	400 @ 60V	DO-214AA	-65 to 125	Active	RoHS3 Compliant
PMEG6020EP,115	Nexperia	60	2	530 @ 2A	150 @ 60V	SOD-128	-40 to 150	Active	RoHS3 Compliant
B260-13-F	Diodes Inc.	60	2	700 @ 2A	500 @ 60V	DO-214AA	-65 to 150	Active	RoHS3 Compliant
MBRS260T3G	onsemi	60	2	630 @ 2A	200 @ 60V	DO-214AA	-55 to 125	Active	RoHS3 Compliant
PMEG6020ETP,115	Nexperia	60	2	530 @ 2A	150 @ 60V	SOD-128	-40 to 175	Active	RoHS3 Compliant
SK26_R1_00001	Panjit	60	2	700 @ 2A	90 @ 60V	DO-214AA	-55 to 150	Active	RoHS3 Compliant
SS26T3G	onsemi	60	2	630 @ 2A	200 @ 60V	DO-214AA	-55 to 150	Active	RoHS3 Compliant
STPS1H100U	STMicroelectronics	100	1	770 @ 1A	4 @ 100V	DO-214AA	-40 to 175	Active	RoHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalents):

SS26-E3/52T and SS26-E3/5BT are direct parametric equivalents to SS26/54. Both maintain identical electrical specifications (60V, 2A, 700mV forward voltage, 400µA reverse leakage) and the same DO-214AA package. The distinction between these parts is packaging format: SS26-E3/52T is supplied in Cut Tape & Digi-Reel format, while SS26-E3/5BT is supplied in Tape & Reel format. Both parts are active products with RoHS3 compliance, addressing the obsolescence of the original SS26/54 part.

Recommended Active Alternatives (Same Electrical Class, Different Manufacturers):

B260-13-F (Diodes Incorporated), MBRS260T3G (onsemi), SK26_R1_00001 (Panjit International), and SS26T3G (onsemi) all meet the core electrical requirements of 60V reverse voltage and 2A average rectified current in DO-214AA SMB packages. All are active products with RoHS3 compliance. These parts exhibit variations in forward voltage (630-700mV) and reverse leakage current (90-500µA), which remain within acceptable operating margins for Schottky diode applications. Operating temperature ranges vary between -55°C to 125°C and -55°C to 150°C, providing extended thermal capability compared to the original part.

Alternative Package Consideration (SOD-128):

PMEG6020EP,115 and PMEG6020ETP,115 (Nexperia) provide 60V/2A Schottky performance in SOD-128 package format rather than DO-214AA. These parts feature lower forward voltage (530mV) and reduced reverse leakage (150µA), with extended operating temperature to 150°C (EP variant) or 175°C (ETP variant). Selection of these parts requires PCB layout modification to accommodate the different package footprint.

Not Recommended for Direct Replacement:

STPS1H100U does not meet equivalence criteria. This part operates at 100V reverse voltage and 1A average rectified current, representing a different electrical class unsuitable for direct substitution in 60V/2A applications.

Frequently Asked Questions (FAQ)

Q: Can SS26-E3/52T or SS26-E3/5BT be used as direct replacements for the obsolete SS26/54?

A: Yes. Both parts are parametric equivalents with identical electrical specifications (60V, 2A, 700mV Vf, 400µA Ir) and the same DO-214AA package. The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel). Both are active products with RoHS3 compliance.

Q: What is the difference between B260-13-F and MBRS260T3G?

A: Both parts meet the 60V/2A Schottky specification in DO-214AA packages. B260-13-F (Diodes Incorporated) maintains 700mV forward voltage matching the original SS26/54, while MBRS260T3G (onsemi) operates at 630mV forward voltage. MBRS260T3G offers lower reverse leakage (200µA vs. 500µA). Both are RoHS3 compliant and active products.

Q: Can PMEG6020EP,115 replace SS26/54 in existing designs?

A: PMEG6020EP,115 meets the electrical requirements (60V, 2A, Schottky) but uses SOD-128 package instead of DO-214AA. This requires PCB layout modification. The part offers superior performance with 530mV forward voltage and 150µA reverse leakage. Selection depends on design flexibility for package change.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Voltage - DC Reverse (Vr) Maximum = 60V, (2) Current - Average Rectified (Io) = 2A, (3) Technology = Schottky, (4) Mounting Type = Surface Mount, and (5) Package = DO-214AA (SMB) or compatible surface mount package. Forward voltage and reverse leakage variations within the Schottky diode class do not prevent substitution.

Q: Why is STPS1H100U listed as a substitute if it has different ratings?

A: STPS1H100U was included in the original substitute list provided but does not meet strict equivalence criteria. This part operates at 100V/1A, representing a different electrical class. It is not recommended for direct replacement in 60V/2A applications.

Q: Are all recommended substitutes RoHS3 compliant?

A: Yes. All active substitute parts listed (SS26-E3/52T, SS26-E3/5BT, PMEG6020EP,115, B260-13-F, MBRS260T3G, PMEG6020ETP,115, SK26_R1_00001, and SS26T3G) are RoHS3 compliant. The original SS26/54 is RoHS non-compliant, making these alternatives necessary for compliance-driven applications.

Q: What is the difference between Cut Tape & Digi-Reel and Tape & Reel packaging?

A: Both are surface mount packaging formats for automated assembly. Cut Tape & Digi-Reel (SS26-E3/52T) provides components on cut tape with reel compatibility for high-volume production. Tape & Reel (SS26-E3/5BT) supplies components on continuous tape wound on reels. Selection depends on assembly equipment and production volume requirements.

Q: Can I use SK26_R1_00001 in place of SS26/54?

A: Yes. SK26_R1_00001 (Panjit International) meets all electrical requirements (60V, 2A, 700mV Vf, Schottky, DO-214AA package) and is an active RoHS3 compliant product. It features exceptionally low reverse leakage (90µA) and extended operating temperature range (-55°C to 150°C).

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